DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 658

• Manufacturer Part Number: DF3048BVX25V
• Description: MCU 3/5V 128K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048BVX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 19 Clock Pulse Generator
19.1.1
Figure 19.1 shows a block diagram of the clock pulse generator.
19.2
Clock pulses can be supplied by connecting a crystal resonator, or by input of an external clock
signal.
19.2.1
Circuit Configuration
A crystal resonator can be connected as in the example in figure 19.2. The damping resistance Rd
should be selected according to table 19.1, and external capacitance C
AT-cut parallel-resonance crystal should be used.
Rev. 3.00 Sep 27, 2006 page 630 of 872
REJ09B0325-0300
XTAL
EXTAL
Block Diagram
Oscillator Circuit
Connecting a Crystal Resonator
Figure 19.1 Block Diagram of Clock Pulse Generator
Oscillator
adjustment
circuit
Duty
Frequency
Data bus
Division
register
divider
control
L1
or C
L2
to table 19.2. An
Prescalers
/2 to /4096
CPG